How far is Rockford, IL, from Grayling, AK?
The distance between Grayling (Grayling Airport) and Rockford (Chicago Rockford International Airport) is 3113 miles / 5009 kilometers / 2705 nautical miles.
The driving distance from Grayling (KGX) to Rockford (RFD) is 3984 miles / 6412 kilometers, and travel time by car is about 130 hours 8 minutes.
Grayling Airport – Chicago Rockford International Airport
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Distance from Grayling to Rockford
There are several ways to calculate the distance from Grayling to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 3112.639 miles
- 5009.307 kilometers
- 2704.809 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 3104.406 miles
- 4996.057 kilometers
- 2697.655 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from Grayling to Rockford?
The estimated flight time from Grayling Airport to Chicago Rockford International Airport is 6 hours and 23 minutes.
What is the time difference between Grayling and Rockford?
The time difference between Grayling and Rockford is 3 hours. Rockford is 3 hours ahead of Grayling.
Flight carbon footprint between Grayling Airport (KGX) and Chicago Rockford International Airport (RFD)
On average, flying from Grayling to Rockford generates about 348 kg of CO2 per passenger, and 348 kilograms equals 767 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Grayling to Rockford
See the map of the shortest flight path between Grayling Airport (KGX) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Grayling Airport |
|---|---|
| City: | Grayling, AK |
| Country: | United States  |
| IATA Code: | KGX |
| ICAO Code: | PAGX |
| Coordinates: | 62°53′42″N, 160°3′58″W |
| Destination | Chicago Rockford International Airport |
|---|---|
| City: | Rockford, IL |
| Country: | United States |
| IATA Code: | RFD |
| ICAO Code: | KRFD |
| Coordinates: | 42°11′43″N, 89°5′49″W |